Compilare: main.cpp: In function 'int main()': main.cpp:25:14: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 25 | for(i=0;i<s.size();i++){ | ~^~~~~~~~~ main.cpp:29:14: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 29 | for(i=0;i<s.size();i++){ | ~^~~~~~~~~ main.cpp:34:14: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 34 | for(i=1;i<=s1.size()-s.size();i++){ | ~^~~~~~~~~~~~~~~~~~~~